Experimental study of the methane/hydrogen/ammonia and ethylene/ammonia oxidation: Multi-parameter measurements using a shock tube combined with laser absorption spectroscopy

Zheng, Dao; He, Dong; Du, Yong; Li, Jidong; Zhang, M.; Ding, Yao; Peng, Zhimin

doi:10.1016/j.combustflame.2023.112830

Cited by 12 publications

(1 citation statement)

References 65 publications

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“…Wavelength modulation spectroscopy (WMS) technology has been extensively used to measure gas characteristics in areas such as greenhouse gas and atmospheric pollutant monitoring [ 1 , 2 ], combustion monitoring [ 3 , 4 ], and industrial process control [ 5 , 6 , 7 ] due to its noise rejection, high measurement accuracy, simplicity, and fast response time [ 8 , 9 , 10 , 11 , 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Concentration Retrieval in a Calibration-Free Wavelength Modulation Spectroscopy System Using Particle Swarm Optimization Algorithm

Zhang

Sun

Wang

et al. 2023

Sensors

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This paper develops a concentration retrieval technique based on the particle swarm optimization (PSO) algorithm, which is used for a calibration-free wavelength modulation spectroscopy system. As compared with the commonly used technique based on the Levenberg–Marquardt (LM) algorithm, the PSO-based method is less dependent on the pre-characterization of the laser tuning parameters. We analyzed the key parameters affecting the performance of the PSO-based technique and determined their optimal parameter values through testing. Furthermore, we conducted a comparative analysis of the efficacy of two techniques in detecting C2H2 concentration. The results showed that the PSO-based concentration retrieval technique is about 63 times faster than the LM-based one in achieving the same accuracy. Within 5 s, the PSO-based technique can produce findings that are generally consistent with the values anticipated.

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